While visiting New York, Ogden Fenn finds himself charmed with Diana Manners, wife of Frank Manners, an architect who is away on business in San Francisco, and they become involved. The husband returns unexpectedly and learns that his wife loves Fenn. When Diana and Fenn go to the latter's cabin near New York, Mrs. Hastings, who though married loves Frank, persuades him not to interfere because of the effects on his child. Mr. Hastings, learning of his wife's own infidelity, motors to the cabin, forces Fenn into his car, and drives the vehicle over a steep embankment.